Fault Fuselage Loop Pin Programming

TASK 36-11-00-810-977-A
Fault Fuselage Loop Pin Programming

1. Possible Causes

BMC-1 [1HA1]
BMC-2 [1HA2]

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 36-11-00-740-001	BITE Test of the BMC 1(2)
AMM 36-11-34-000-001	Removal of the BMC
AMM 36-11-34-400-001	Installation of the BMC

3. Fault Confirmation
Subtask 36-11-00-740-116-A ** ON A/C NOT FOR ALL

A. Do the BITE test of the BMC1(2) AMM 36-11-00-740-001.
(1) If the test gives the maintenance message WRG: FUSELAGE LOOP PIN PROG, go to Para. Fault Isolation.

4. Fault Isolation
Subtask 36-11-00-810-475-A ** ON A/C NOT FOR ALL

A. Do a check of the BMC Pin Programming of pin AB/10A:
(1) Make sure that for BMC1 (1HA1) and BMC2 (1HA2) the pin AB/10A is set to open contact.
(2) If the fault continues:

Replace the BMC-1 [1HA1] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.
Do the test given in Para. 3.

(3) If the fault continues:

Replace the BMC-2 [1HA2] AMM 36-11-34-000-001 and AMM 36-11-34-400-001.

[Rev.8 from Aug 2018] 2026.04.04 04:33:52 UTC